Sleep Disorders Center

The Sleep Disorders Center at Texas Neurology is located at 7001 Preston Road, Suite 404, in the University Park area of Dallas. It is located at the intersection of Preston Road and Lovers Lane. Please note that appointments are scheduled by calling the center's coordinator at (214) 443-5154.

Sleep is absolutely essential for normal, healthy function. According to the National Institute of Neurological Disorders and Stroke, about 40 million people in the United States suffer from chronic, long-term sleep disorders, while an additional 20 million people suffer occasional sleep problems. There are more than 80 different sleep disorders that are generally classified into one of three categories:

Lack of Sleep (Insomnia)

Disturbed Breathing during Sleep (Obstructive Sleep Apnea)

Excessive Sleep (Narcolepsy)

In most cases, sleep disorders can be easily managed once they are properly diagnosed. Inadequate sleep can have severe detrimental effects on health. Studies have shown that sleep is essential for normal immune system function and to maintain the ability to function both mentally and physically. In addition, sleep is essential for learning and for normal, healthy cell growth.

The Sleep Disorders Center at Texas Neurology provides comprehensive evaluation and management of adult patients with sleep disorders. Working in tandem with your physician, our trained staff will monitor and record the data needed to make the proper diagnosis and suggest the appropriate treatment plan. In addition to sleep studies, our services include a weekly sleep clinic, that provides formal consultation, follow-up, and management of various sleep disorders.

To simulate the closest conditions to sleeping at home, our rooms are nicely appointed and resemble a comfortable suite at a fine hotel. At the same time, our center is equipped with advanced digital technology in polysomnographic recording where routine and airway pressure titration studies are performed, as well as multiple sleep latency tests.

Waleed H. El-Feky, MD

Dr. El-Feky is a graduate from Ain Shams University School of Medicine in Cairo, Egypt. He completed his internship at Texas Tech University Health Sciences Center in El Paso. He completed his neurology training at the University of Texas Southwestern Medical Center at Dallas, where he served as the Chief Resident of Neurology from 1996 to 1997.

Dr. El-Feky completed his fellowship in Neurophysiology at the University of Texas Health Science Center at San Antonio. He completed a second fellowship in Neurointensive Care at the Cleveland Clinic in Cleveland, Ohio in 1999. He is board certified in neurology, neurophysiology, and sleep medicine. He currently holds positions at Baylor University Medical Center at Dallas and at the University of Texas Southwestern Medical Center at Dallas.

Dr. El-Feky practices general neurology. His areas of interests are stroke treatment and prevention, critical care neurology, and peripheral neuromuscular disease. He is currently participating in multiple clinical drug trials for neurological diseases.

C. Fish Greenfield, MD

Dr. Greenfield graduated with a BS degree in chemistry and microbiology as well as his medical degree from the University of Oklahoma. He completed his neurology residency and neurophysiology fellowship training at the University of Texas Southwestern Medical Center at Dallas.

Prior to moving to the Dallas area, he practiced neurology in Houston, Texas. Most recently, he has been on the faculty at the University of Texas Southwestern Medical Center and is currently affiliated with Baylor University Medical Center. He is board certified in neurology and sleep medicine with particular interests in the treatment of headaches, strokes, sleep disorders, and neuromuscular disorders.